11 Things You Need To Know Today (October 31)

An analysis of 53 studies by researchers at Harvard has emphasized that low-fat diets don't give the best weight-loss results long term. Trans fats should still be avoided, but those looking to lose weight are encouraged to keep those healthy fats on their plates. (TIME)

The ozone layer over Antarctica has reached near-record levels, scientists from NASA and the National Oceanic and Atmospheric Administration said on Thursday. But according to the World Meteorological Organization, it does not reverse the projected long-term recovery in the coming decades. (International Business Times)

4. The bubonic plague might be back.

A 16-year-old girl in Oregon tested positive for the bubonic plague. Doctors believe she contracted it from a flea during a hunting trip, and she has been hospitalized since October 24. (NPR)

5. Russia is testing an all-female moon mission.

On Wednesday, six female Russian volunteers began an eight-day simulated mission to the moon to test how an all-female crew would interact and communicate. This is the first time such a simulation has taken place. (Yahoo)

6. Transgender woman sentenced to serve time in an all-male prison has just lost her appeal.

Tara Hudson has lived as a woman her whole adult life. After six years of reconstructive surgery, she's still legally a man. Despite facing harassment, a court denied Hudson's appeal to be moved to a women's prison. (TechCrunch)

7. Hillary Clinton intends to eliminate the distinction between sentences for crack and powder cocaine and proposes putting body cameras on police to eliminate racial profiling.

In her speech Friday, Clinton shared an ambitious criminal justice plan that would make the punishments for possession of crack and powder cocaine equal (a move for racial equality, since 80 percent of those convicted for possession of crack are black). As part of her plan for racial justice reform, Hillary also supports polarizing measures like physical monitoring of all police officers via body-cam. (Washington Post)

8. Sherwin-Williams developed a paint that is designed to kill 99.9 percent of bacteria.

This "Pain Shield" line is certified by the EPA for killing bacteria that can cause staph, MRSA, and E. coli. (ABC News)

9. TMI? Google might be developing technology to track your mood.

The tech giant's Life Sciences sector has hired the former director of the National Institute of Mental Health to work on a project that's "still under wraps" but seems to have something to do with using sensors to track mood. In theory, this technology could help reveal signs of anxiety and depression, and potentially lower suicide rates. (BBC News)

10. Simone Biles became the first woman to win three consecutive titles at the World Gymnastic Championships.

The 18-year-old gymnast hasn't lost a meet in over two years. (USA Today)

11. A 10-year-old wants to change the U.S. Constitution for the best reason.

Alena Mulhern would really like to be president someday, but according to the law, she'll never be able to take her seat in the Oval Office. That's because Alena, who was adopted from China at 10 months old, isn't considered a natural-born citizen. She's consequently taking on Congress with the hope of passing a resolution that will modify the law. (CBS Boston)